21251354342640

Names of 21251354342640

• Cardinal: 21251354342640 can be written as Twenty-one trillion, two hundred fifty-one billion, three hundred fifty-four million, three hundred forty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.125135434264 × 10¹³

Factors of 21251354342640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 401

Divisors of 21251354342640

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 31 40 48 58 60 62 80 87 93 116 120 124 145 155 174 186 232 240 248 290 310 331 348 372 435 464 465 496 580 620 662 696 744 841 870 899 930 961 993 1160 1240 1324 1392 1488 1655 1682 1740 1798 1860 1922 1986 2320 2480 2523 2648 2697 2883 3310 3364 3480 3596 3720 3844 3972 4205 4495 4805 4965 5046 5296 5394 5766 6620 6728 6960 7192 7440 7688 7944 8410 8990 9599 9610 9930 10092 10261 10788 11532 12615 13240 13456 13485 14384 14415 15376 15888 16820 17980 19198 19220 19860 20184 20522 21576 23064 25230 26071 26480 26970 27869 28797 28830 30783 33640 35960 38396 38440 39720 40368 41044 43152 46128 47995 50460 51305 52142 53940 55738 57594 57660 61566 67280 71920 76792 76880 78213 79440 82088 83607 95990 100920 102610 104284 107880 109561 111476 115188 115320 123132 130355 139345 143985 153584 153915 156426 164176 167214 191980 201840 205220 208568 215760 219122 222952 230376 230640 246264 260710 278371 278690 287970 297569 307830 312852 318091 328683 334428 383960 391065 410440 417136 418035 438244 445904 460752 492528 521420 547805 556742 557380 575940 595138 615660 625704 636182 657366 668856 767920 782130 808201 820880 835113 836070 876488 892707 954273 1042840 1095610 1113484 1114760 1151880 1190276 1231320 1251408 1272364 1314732 1337712 1391855 1487845 1564260 1590455 1616402 1643415 1670226 1672140 1752976 1785414 1908546 2085680 2191220 2226968 2229520 2303760 2380552 2424603 2462640 2544728 2629464 2783710 2975690 3128520 3177269 3180910 3232804 3286830 3340452 3344280 3396391 3570828 3817092 4041005 4175565 4382440 4453936 4463535 4761104 4771365 4849206 5089456 5258928 5567420 5951380 6257040 6354538 6361820 6465608 6573660 6680904 6688560 6792782 7141656 7634184 8082010 8351130 8629501 8764880 8927070 9224639 9531807 9542730 9698412 10189173 11134840 11902760 12123015 12709076 12723640 12931216 13147320 13361808 13585564 14283312 15268368 15886345 16164020 16702260 16981955 17259002 17854140 18449278 19063614 19085460 19396824 20378346 22269680 23805520 24246030 25418152 25447280 25888503 26294640 27171128 27673917 31772690 32328040 33404520 33963910 34518004 35708280 36898556 38127228 38170920 38793648 40756692 43147505 46123195 47659035 48492060 50836304 50945865 51777006 54342256 55347834 63545380 64656080 66809040 67927820 69036008 71416560 73797112 76254456 76341840 81513384 86295010 92140801 92246390 95318070 96984120 98495339 101891730 103554012 105288121 110695668 127090760 129442515 135855640 138072016 138369585 147594224 152508912 163026768 172590020 184281602 184492780 190636140 193968240 196990678 203783460 207108024 210576242 221391336 254181520 258885030 267514531 271711280 276422403 276739170 295486017 315864363 345180040 368563204 368985560 381272280 393981356 407566920 414216048 421152484 442782672 460704005 492476695 517770060 526440605 535029062 552844806 553478340 590972034 631728726 690360080 737126408 737971120 762544560 787962712 802543593 815133840 842304968 921408010 984953390 1035540120 1052881210 1070058124 1105689612 1106956680 1181944068 1263457452 1337572655 1382112015 1474252816 1477430085 1575925424 1579321815 1605087186 1684609936 1842816020 1969906780 2071080240 2105762420 2140116248 2211379224 2213913360 2363888136 2526914904 2675145310 2764224030 2856364831 2954860170 3053355509 3158643630 3210174372 3685632040 3939813560 4012717965 4211524840 4280232496 4422758448 4727776272 5053829808 5350290620 5528448060 5712729662 5909720340 6106711018 6317287260 6420348744 7371264080 7879627120 8025435930 8423049680 8569094493 9160066527 10700581240 11056896120 11425459324 11819440680 12213422036 12634574520 12840697488 14281824155 15266777545 16050871860 17138188986 18320133054 21401162480 22113792240 22850918648 23638881360 24426844072 25269149040 28563648310 30533555090 32101743720 34276377972 36640266108 42845472465 45701837296 45800332635 48853688144 57127296620 61067110180 64203487440 68552755944 73280532216 85690944930 88547309761 91600665270 114254593240 122134220360 137105511888 146561064432 171381889860 177094619522 183201330540 228509186480 244268440720 265641929283 342763779720 354189239044 366402661080 442736548805 531283858566 685527559440 708378478088 732805322160 885473097610 1062567717132 1328209646415 1416756956176 1770946195220 2125135434264 2656419292830 3541892390440 4250270868528 5312838585660 7083784780880 10625677171320 21251354342640
• Sum of all divisors σ(n): 70714808321976
• Sum of proper divisors (its aliquot sum) s(n): 49463453979336
• 21251354342640 is an abundant number, because the sum of its proper divisors (49463453979336) is greater than itself. Its abundance is 28212099636696

Bases of 21251354342640

• Binary: 100110101001111110111011011010011010011110000₂
• Hexadecimal: 0x1353F76D34F0
• Base-36: 7J6QJOJQO

Squares and roots of 21251354342640

• 21251354342640 squared (21251354342640²) is 451620061396443986522169600
• 21251354342640 cubed (21251354342640³) is 9597537952980663335631422559594591744000
• The square root of 21251354342640 is 4609919.1253903793
• The cube root of 21251354342640 is 27698.8797101255

Scales and comparisons

• 21,251,354,342,640 seconds is equal to 675,727 years, 17 weeks, 2 days, 8 hours, 4 minutes.
• To count from 1 to 21,251,354,342,640 would take you about one million, six hundred eighty-nine thousand, three hundred eighteen years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21251354342640 cubic inches would be around 2308.2 feet tall.

Recreational maths with 21251354342640

• 21251354342640 backwards is 04624345315212
• The number of decimal digits it has is: 14
• The sum of 21251354342640's digits is 42
• More coming soon!